You do not have to redownload, it can be updated from the itch client. But that was just a small update with a lot of bug fixes, so nothing major yet.
where on the itch client? it only gives me the option to download or install. (i already have it installed)
I'm on a Mac now, but I can press "check for updates" if I right-clicking the game :)
i found the problem, i just had the game downloaded as a file, not installed on the itch app
